Creating Self-Testing Applications in Delphi

• Create a new Delphi project or open an existing one.

• Include the <TestComplete>\Connected Apps\Delphi\TCConnect.pas file into the list of source file(s) where you want to put your test procedures. TCConnect.pas contains functions that allow you to use TestComplete objects (Sys, Log, Project, Files, Regions, etc.).

• To create test code in a Self-Testing Application, write the test code in your Delphi source, or copy the test procedure(s) from TestComplete scripts written in DelphiScript.

  To address TestComplete objects from a Self-Testing Application, use object names. This functionality is only implemented for standard TestComplete objects (Sys, Log, Regions, Files and others) and not supported for objects that are provided by third-party plugins.

  If you need to work with an object that is provided by a third-party plugin, you should obtain this object by using the GetObjectByName function that is defined in TCConnect.pas. To emulate addressing an object by its name, you can create a special function that will call the GetObjectByName function and return the desired object. The important thing is that the function’s name coincides with the object’s name:

  Delphi

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  Delphi

  [YourUnit.pas]
   

  uses TCConnect;
  ...
  function MyObjectName : OleVariant;
  begin
    Result := TCConnect.GetObjectByName('MyObjectName');
  end;

  Since Delphi lets you skip braces when calling functions that do not have any parameters, the function will give an impression that you address an object directly.

• Create a separate thread for the procedure to run in, unless it does not call for onscreen inputs (e.g. button clicks, menu selections, etc.) serviced by the current thread. If you need an input thread, it has to begin with a call to CoInitializeEx(nil, COINIT_MULTITHREADED).

• Note that in order for the Self-Testing Application to be able to address TestComplete objects and post messages to the test log, TestComplete must be in the script-running mode. So, to run the test code, you should either launch the Self-Testing Application from the TestComplete script, or call the RunTest routine (see Running Connected and Self-Testing Applications for more information).

  So, if you are going to use the RunTest routine, insert a call to it before the first statement of the test code in your Self-Testing Application. To stop the test run initiated with RunTest, use the StopTest routine:

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  Delphi

  RunTest('My Test', 'MyProject', 'C:\Work\MyProjectSuite.pjs');
  ...
  // Test code
  ...
  StopTest();

  If you are going to launch your Self-Testing Application from TestComplete, call the test procedure from your own code. For instance, you can call the test procedure within a button’s OnClick event handler.

• Compile your application.

In order for Self-Testing Applications to be able to use TestComplete scripting objects and post messages to the test log, TestComplete must be in the script-running mode. The testing engine switches to this mode when you run a test from TestComplete, or when you call the RunTest routine (see Running Connected and Self-Testing Applications).

If you do not use the RunTest routine, you should launch your Self-Testing Application from TestComplete. To do this:

• Open your project in TestComplete.

• Add your Self-Testing Application to the project’s tested applications list. For more information on how to perform this, see Defining Applications to Test.

• Write script code that will launch your Self-Testing Application and wait while it performs the testing actions. For instance:

  JavaScript, JScript

  Python

  VBScript

  DelphiScript

  C++Script, C#Script

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  JavaScript, JScript

  function Test()
  {
    var p;
    // Launches the Self-Testing Application and obtains the process
    // that corresponds to your Self-Testing Application
    p = TestedApps.Items[0].Run();
    // Delays script execution while 
    // the Self-Testing Application performs the testing actions
    while(p.Exists)
      aqUtils.Delay(500);
  }

  Python

  def Test():
    # Launches the Self-Testing Application and obtains the process
    # that corresponds to your Self-Testing Application
    p = TestedApps.Items[0].Run()
    # Delays script execution while 
    # the Self-Testing Application performs the testing actions
    while p.Exists:
      aqUtils.Delay(500)

  VBScript

  Sub Test
    ' Launches the Self-Testing Application and obtains the process
    ' that corresponds to your Self-Testing Application
    Set p = TestedApps.Items(0).Run
    ' Delays script execution while
    ' the Self-Testing Application performs the testing actions
    While p.Exists
      aqUtils.Delay 500
    WEnd
  End Sub

  DelphiScript

  procedure Test;
  var
    p : OleVariant;
  begin
    // Launches the Self-Testing Application and obtains the process
    // that corresponds to your Self-Testing Application
    p := TestedApps.Items[0].Run;
    // Delays script execution while
    // the Self-Testing Application performs the testing actions
    while p.Exists do
      aqUtils.Delay(500);
  end;

  C++Script, C#Script

  function Test()
  {
    var p;
    // Launches the Self-Testing Application and obtains the process
    // that corresponds to your Self-Testing Application
    p = TestedApps["Items"](0)["Run"]();
    // Delays script execution while 
    // the Self-Testing Application performs the testing actions
    while (p["Exists"])
      aqUtils["Delay"](500);
  }

• Make sure this code is called when running the current TestComplete project.

• As you can see, the script runs until the Self-Testing Application is closed. In order to stop the script run from the Self-Testing Application, use the Runner.Stop method. This method notifies TestComplete that the test run is over, and refreshes the Test Log so that it displays the latest test results.

You can now run the test by clicking the button whose OnClick event handler contains the test code.